title: Extraoral implants for orbit rehabilitation: a comparison between one-stage and two-stage surgeries.
abstract: The aim of the study was to compare the osseointegration success rate and time for delivery of the prosthesis among cases treated by two-stage or one-stage surgery for orbit rehabilitation between 2003 and 2011. Forty-five patients were included, 31 males and 14 females; 22 patients had two-stage surgery and 23 patients had one-stage surgery. A total 138 implants were installed, 42 (30.4%) on previously irradiated bone. The implant survival rate was 96.4%, with a success rate of 99.0% among non-irradiated patients and 90.5% among irradiated patients. Two-stage patients received 74 implants with a survival rate of 94.6% (four implants lost); one-stage surgery patients received 64 implants with a survival rate of 98.4% (one implant lost). The median time interval between implant fixation and delivery of the prosthesis for the two-stage group was 9.6 months and for the one-stage group was 4.0 months (P < 0.001). The one-stage technique proved to be reliable and was associated with few risks and complications; the rate of successful osseointegration was similar to those reported in the literature. The one-stage technique should be considered a viable procedure that shortens the time to final rehabilitation and facilitates appropriate patient follow-up treatment.
authors.affiliation: Dental School, Universidade Paulista, UNIP, Vila Clementino, São Paulo, Brazil.
authors.forename: M C L M P
authors.initials: MC
authors.lastname: de Mello
authors.affiliation: Dental School, Universidade Paulista, UNIP, Vila Clementino, São Paulo, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Guedes
authors.affiliation: Dental School, Universidade Paulista, UNIP, Vila Clementino, São Paulo, Brazil.
authors.forename: J A P
authors.initials: JA
authors.lastname: de Oliveira
authors.affiliation: Dental School, Universidade Paulista, UNIP, Vila Clementino, São Paulo, Brazil.
authors.forename: V A
authors.initials: VA
authors.lastname: Pecorari
authors.affiliation: Dental School, Universidade Paulista, UNIP, Vila Clementino, São Paulo, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Abrahão
authors.affiliation: Dental School, Universidade Paulista, UNIP, Vila Clementino, São Paulo, Brazil. Electronic address: lldib@uol.com.br.
authors.forename: L L
authors.initials: LL
authors.lastname: Dib
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000601:surgery*; D020273:Orbital Implants; D016348:Osseointegration; D011474:Prosthesis Design; D019919:Prosthesis Implantation / Q000379:methods*; D012189:Retrospective Studies; D013524:Surgical Flaps; D015996:Survival Rate; D016896:Treatment Outcome
keywords: extraoral implants; orbit rehabilitation; surgical technique; survival rate